| Trinity Theatre, The | The Trinity Theatre | England, Tunbridge Wells, Church Road | 1985-01-19 | 2023-10-15 | 1985–2023 | 8 | |
| Trinity Valley School | Trinity Valley School | United States of America, Willow Creek, 730 CA-96 | 2005-12-08 | -- | 2005 | 1 | |
| Tripoli | Tripoli | Libya, Tripoli | 2013-09-04 | 2013-09-09 | 2013 | 1 | |
| Tripoli | Tripoli | Greece, Tripoli | 1911-03-25 | -- | 1911 | 1 | |
| Trippel X | Trippel X | Netherlands, Amsterdam | 1994-07-28 | 1994-07-30 | 1994 | 1 | |
| Tristan Bates Theatre | Tristan Bates Theatre | England, London, 1A Tower Street, Covent Garden | 1997-09-25 | -- | 1997 | 1 | |
| Triton Museum Hall Pavilion | Triton Museum Hall Pavilion | United States of America, Santa Clara, 1505 Warburton Avenue | 2004-08-12 | 2004-08-22 | 2004 | 1 | |
| Trivselshagen | Trivselshagen | Norway, Sandane | 2015-10-04 | 2020-09-18 | 2015–2022 | 4 | |
| Trnava | Trnava | Slovak Republic, Trnava | 1912-09-24 | -- | 1912 | 1 | |
| Trnavské divadlo | Trnavské divadlo | Slovak Republic, Trnava | 1999-03-12 | -- | 1999 | 1 | |
| Trojan House Theater | Trojan House Theater (木马剧场) | China, Beijing, 22 International Art Street, 32 Baiziwan Lu, Chaoyang district | 2012-11-12 | 2012-11-28 | 2012 | 1 | |
| Trollhättan | Trollhättan | Sweden, Trollhätan | 1989-11-02 | 1991-04-04 | 1989–1991 | 2 | |
| Troms Fylkeskultursenter | Troms Fylkeskultursenter | Norway, Tromsø, Strandveien 95 | 1997-11-10 | 1997-11-11 | 1997 | 1 | |
| Tromstun skole | Tromstun skole | Norway, Tomasjord, Tellusveien 1 | 1975-12-04 | 1976-01-16 | 1975 | 1 | |
| Tromsø | Tromsø | Norway, Tromsø | 1898-01-10 | 1999-06-19 | 1898–2015 | 9 | |
| Tromsøhallen | Tromsøhallen | Norway, Tromsø, Templarheimen | 1997-11-09 | 1997-11-10 | 1997 | 1 | |
| Tromøy ungdomsskole | Tromøy ungdomsskole | Norway, Færvik, Aust-Agder | 1997-09-01 | -- | 1997 | 1 | |
| Tron Theatre | Tron Theatre | Scotland, Glasgow, 63 Trongate | 2004-06-17 | 2015-10-24 | 2004–2015 | 2 | |
| Trondenes fort | Trondenes fort | Norway, Harstad, Trondenes | 1994-03-21 | -- | 1994 | 1 | |
| Trondheim | Trondheim | Norway, Trondheim | 1972-11-09 | -- | 1972–2015 | 2 | |
| Trondheim Forfattersentrum | Trondheim Forfattersentrum | Norway, Trondheim, Kjøpmannsgata 40 | 2007-01-15 | 2007-01-24 | 2007 | 1 | |
| Trondheim Torg | Trondheim Torg | Norway, Trondheim, Kongens gate 9 | 2004-11-06 | 2004-11-13 | 2004 | 1 | |
| Trondhjems Katedralskole | Trondhjems Katedralskole | Norway, Trondheim | 1973-10-17 | -- | 1973 | 1 | |
| Trondhjems Nationale Scene | Trondhjems Nationale Scene | Norway, Trondheim, Prinsens Gate 20 | 1911-09-16 | -- | 1911–1924 | 11 | |
| Trossnäs lägerplats | Trossnäs lägerplats | Sweden, Trossnäs | 1911-06-30 | -- | 1911 | 1 | |
| Trudvang | Trudvang | Norway, Surna | 1956-02-10 | -- | 1956 | 1 | |
| Trueblood Auditorium, Frieze Building, University of Michigan | Trueblood Auditorium, Frieze Building, University of Michigan | United States of America, Ann Arbor | 1966-04-06 | 1966-04-09 | 1966 | 1 | |
| Trump Kültür Ve Gösteri Merkezi | Trump Kültür Ve Gösteri Merkezi | Turkey, Istanbul | 2023-11-10 | 2023-11-30 | 2023 | 1 | |
| Trysil | Trysil | Norway, Trysil | 1966-04-21 | -- | 1966–1971 | 2 | |
| Trøgstad Ungdomsskole | Trøgstad Ungdomsskole | Norway, Trøgstad, Trøgstad | 2005-11-10 | -- | 2005 | 1 | |
| Trøndelag Teater | Trøndelag Teater | Norway, Trondheim, Prinsens Gate 20 | 1938-09-01 | 2024-02-06 | 1938–2024 | 58 | |
| Tschitalischte Slavjanska | The Lounge of Tschitalischte Slavjanska besseda | Bulgaria, Sofia | 1994-11-08 | -- | 1994 | 1 | |
| Tsjernigivs'kij molodizjnij teatr Vistavi | Tsjernigivs'kij molodizjnij teatr Vistavi | Ukraine, Tsjernihiv | 2004-10-01 | -- | 2004 | 1 | |
| Tsukiji honganji budisutohōru | Tsukiji honganji budisutohōru (Tsukiji Buddhist Hall) | Japan, Tokyo, 3 Chome−15−1 | 1993-02-05 | 1993-02-07 | 1993 | 1 | |
| Tsukiji Shōgekijō | Tsukiji Shōgekijō (Tsukiji Little Theatre) | Japan, Tokyo | 1924-09-15 | 1938-02-15 | 1924–1938 | 8 | |
| TU-Nantes | TU-Nantes | France, Nantes, Chemin de la Censive du Tertre | 2012-02-28 | 2018-02-23 | 2012–2018 | 2 | |
| Tufts Arena Theater | Tufts Arena Theater | United States of America, Medford, 389 Boston Avenue | 1957-11-15 | 2019-11-02 | 1957–2019 | 2 | |
| Tulane Theater | Tulane Theater | United States of America, New Orleans, 6823 St Charles Ave | 1904-11-28 | 1908-09-20 | 1904–1908 | 3 | |
| Tulcea | Tulcea | Romania, Tulcea | -- | -- | | | |
| Tulgheş | Tulgheş | Romania, Tulgheş | -- | -- | | | |
| tulleteater | tulleteater | Belarus | -- | -- | | | |
| Turbulences | Festival Turbulences | France, Strasbourg | 1998-06-11 | 1998-06-13 | 1998 | 1 | |
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